arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2501.12697cs.CV
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结合知识图谱与大语言模型增强零样本视觉问答

Combining Knowledge Graph and LLMs for Enhanced Zero-shot Visual Question Answering

South China University of Technology(华南理工大学);Florida Atlantic University(佛罗里达大西洋大学)

Qian Tao, Xiaoyang Fan, Yong Xu, Xingquan Zhu, Yufei Tang

AI总结:

本文提出结合知识图谱与大语言模型的新方法,通过策略性问题搜索和优化损失权重,在零样本视觉问答中实现最先进性能。

摘要:

零样本视觉问答(ZS-VQA)作为一个新兴的关键研究领域,旨在无需提供训练样本的情况下回答视觉问题。现有的ZS-VQA研究分别提出利用知识图谱或大语言模型(LLMs)作为外部信息源,以帮助VQA模型理解图像和问题。然而,LLMs在准确解读特定问题含义方面常常存在困难。同时,尽管知识图谱具有丰富的实体关系,但将实体有效连接到单个图像内容以进行视觉问题回答仍具有挑战性。在本文中,我们提出了一种新颖的设计,将知识图谱与大语言模型相结合用于零样本视觉问答。我们的方法利用LLMs强大的理解能力,通过一种策略性的问题搜索机制来准确解读图像内容。同时,利用知识图谱来扩展用户的查询并将其连接到图像内容,以实现更好的视觉问答。此外,还使用了一种优化算法来确定来自不同信息源的损失函数的最优权重,以得到全局最优的候选答案集。在两个基准数据集上的实验结果表明,我们的模型达到了最先进的(SOTA)性能。源代码和基准数据将公开发布以供访问。

英文摘要:

Zero-shot visual question answering (ZS-VQA), an emerged critical research area, intends to answer visual questions without providing training samples. Existing research in ZS-VQA has proposed to leverage knowledge graphs or large language models (LLMs), respectively, as external information sources to help VQA model comprehend images and questions. However, LLMs often struggle in accurately interpreting specific question meanings. Meanwhile, although knowledge graph has rich entity relationships, it is challenging to effectively connect entities to individual image content for visual question answers. In this paper, we propose a novel design to combine knowledge graph and LLMs for zero-shot visual question answer. Our approach uses LLMs' powerful understanding capabilities to accurately interpret image content through a strategic question search mechanism. Meanwhile, the knowledge graph is used to expand and connect users' queries to the image content for better visual question answering. An optimization algorithm is further used to determine the optimal weights for the loss functions derived from different information sources, towards a globally optimal set of candidate answers. Experimental results on two benchmark datasets demonstrate that our model achieves state-of-the-art (SOTA) performance. Both source code and benchmark data will be released for public access.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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